Apparatus for supersonic combustion in a restricted length

Details Apparatus for supersonic combustion in a restricted length Apparatus for supersonic combustion in a restricted length

1991-08-30

1993-10-19

Bertsch, Richard A.

Power plants

Internal combustion engine with treatment or handling of...

Material from exhaust structure fed to engine intake

60740, F02K 708

Patent

active

052534740

ABSTRACT:
A supersonic combustion ramjet having a supersonic combustor. The supersonic combustor has a backward-facing step formed in a wall thereof and a forward-facing ramp formed in the wall downstream from the step. Hydrogen fuel is injected into the air flow by axially-directed fuel injectors disposed in the step and/or normally-directed fuel injectors disposed in the ramp. The ramp is inclined toward the center of the combustor so that fuel from the fuel injectors is turned into the main flow. The ensures rapid mixing which enables combustion to be completed within a distance on the order of one foot.

REFERENCES:
patent: 3074668 (1963-01-01), Frenzl
patent: 3667233 (1972-06-01), Curran et al.
patent: 3864907 (1975-02-01), Curran
patent: 4494625 (1985-01-01), Mathes
patent: 5072582 (1991-12-01), Harshman
S. M. Correa et al., "Supersonic Sudden-Expansion Flow with Fluid Injection: an Experimental and Computational Study," Paper AIAA 89-389, 1989.

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